Switched to absolute paths for ufw.

vpnkillswitch-off

 #!/bin/bash
 
-sudo ufw --force reset
-sudo ufw enable
+sudo /usr/bin/ufw --force reset
+sudo /usr/bin/ufw enable
 
 # delete back rules from reset
-sudo rm /etc/ufw/*.rules.*
+sudo /usr/bin/rm /etc/ufw/*.rules.*
 
 # reset to defaults and enable
-sudo ufw default deny incoming
-sudo ufw default allow outgoing
+sudo /usr/bin/ufw default deny incoming
+sudo /usr/bin/ufw default allow outgoing

vpnkillswitch-on

 #!/bin/bash
 
 # Default policies
-sudo ufw default deny incoming
-sudo ufw default deny outgoing
+sudo /usr/bin/ufw default deny incoming
+sudo /usr/bin/ufw default deny outgoing
 
 # Openvpn interface (adjust interface accordingly to your configuration)
-sudo ufw allow out on tun0
+sudo /usr/bin/ufw allow out on tun0
 
 # Openvpn (adjust port accordingly to your vpn setup)
-sudo ufw allow out to any port 1194
+sudo /usr/bin/ufw allow out to any port 1194
 
 # process arguments
 while getopts "t:" opt; do
 	case ${opt} in
 		t)	
 			echo "allow outgoing traffic to $OPTARG"
-			sudo ufw allow out to $OPTARG;;
+			sudo /usr/bin/ufw allow out to $OPTARG;;
 	esac
 done